Element block pseudo-class :active generated with text-shadow 1px 1px 1px rgba(0,0,0,0.2) margin 0px border-radius box-shadow 1px 1px 1px rgba(0,0,0,0.3) transform font-weight normal float none width 160px display block border 0px rgba(0,0,0,1) solid cursor default box-sizing content-box height auto overflow hidden line-height 1 background font-size 16px transition z-index auto padding 20px position static